2008 BMW M3 vs. 2006 Cadillac STS
To start off, 2008 BMW M3 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2006 Cadillac STS would be higher. At 3,563 cc (6 cylinders), 2006 Cadillac STS is equipped with a bigger engine. In terms of performance, 2008 BMW M3 (338 HP @ 7900 RPM) has 85 more horse power than 2006 Cadillac STS. (253 HP @ 6500 RPM). In normal driving conditions, 2008 BMW M3 should accelerate faster than 2006 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac STS weights approximately 127 kg more than 2008 BMW M3.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2008 BMW M3 (365 Nm @ 4900 RPM) has 23 more torque (in Nm) than 2006 Cadillac STS. (342 Nm @ 3200 RPM). This means 2008 BMW M3 will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac STS. 2006 Cadillac STS has automatic transmission and 2008 BMW M3 has manual transmission. 2008 BMW M3 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 BMW M3 | 2006 Cadillac STS | |
| Make | BMW | Cadillac |
| Model | M3 | STS |
| Year Released | 2008 | 2006 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 3563 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 253 HP |
| Engine RPM | 7900 RPM | 6500 RPM |
| Torque | 365 Nm | 342 Nm |
| Torque RPM | 4900 RPM | 3200 RPM |
| Engine Bore Size | 87.1 mm | 94 mm |
| Engine Stroke Size | 91 mm | 85.6 mm |
| Engine Compression Ratio | 11.5:1 | 10.2:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 5.5 seconds | 7.4 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1655 kg | 1782 kg |
| Vehicle Length | 4500 mm | 4990 mm |
| Vehicle Width | 1790 mm | 1850 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2740 mm | 2960 mm |
| Fuel Consumption Highway | 10.2 L/100km | 8.7 L/100km |
| Fuel Consumption Overall | 12.1 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 63 L | 66 L |
